Double Threaded Roofing Screws
With transparent rubber washer
C1022 steel hardend, yellow galvaized
More details please visit us at selfdrillingscrews. Cn
All standard and customized self drilling screws
DIN7504-k, p, n
Hex flange head, DIN7504-K or ANSI B18.2.1
Csk head, DIN7504-p
Pan head DIN7504-n
Optional Head Type:
Hex flange head or hex washer head
Metric sizes as per DIN7504-K
3.5X15, 19, 25, 30mm
4.2X19, 25, 30 40, 50
4.8X19, 25, up to 60
5.5X30, up to 75
6.4X40, 50, 60 up to 100
ANSI inch specifications,
#6X3/4 up to 1-1/4
#8X3/4 up to 2
#10X3/4 up to 3
#12X1 up to 5
#14X1 up to 6 inch
Slotted pan head and flat head
Counter sunk head or round head
Material: C1022 steel, stainless steel SS410